Archive for the ‘materials’ category: Page 117

Feb 8, 2021

Amazing Engineer Transforms Ordinary Paper into Tactile Tessellations

Posted by in category: materials

Artist Matthew Shlian creates intricate 3D paper sculpture that transforms into everyday material into dazzling tessellations that look like waves of spikes.

Feb 8, 2021

Kenyan Woman’s Startup Recycles Plastic Waste into Bricks That Are 5x Stronger Than Concrete

Posted by in category: materials

Making plastic bricks, 5 times stronger than concrete, Nzambi Matee runs Njenge Makers in Nairobi, where she turns plastic waste into bricks.

Feb 8, 2021

DARPA to survey private sector capabilities to build factories on the moon

Posted by in categories: materials, space

WASHINGTON — The Defense Advanced Research Projects Agency wants to hear from the space industry about their capabilities to manufacture large structures on the moon.

This is a new project that DARPA announced Feb. 5 called “Novel Orbital and Moon Manufacturing, Materials and Mass-efficient Design.”

Feb 7, 2021

Molecule from nature provides fully recyclable polymers

Posted by in category: materials

Plastics are among the most successful materials of modern times. However, they also create a huge waste problem. Scientists from the University of Groningen (The Netherlands) and the East China University of Science and Technology (ECUST) in Shanghai produced different polymers from lipoic acid, a natural molecule. These polymers are easily depolymerized under mild conditions. Some 87 percent of the monomers can be recovered in their pure form and re-used to make new polymers of virgin quality. The process is described in an article that was published in the journal Matter on 4 February.

Feb 6, 2021

Biomedical engineers from the United States and the University of Sydney have collaborated to develop a surgical glue

Posted by in categories: biotech/medical, materials

This can turn out to be a very important and useful invention for medical science. The elastic and adhesive glue quickly seals wounds after application, without the need of stitches or staples. The glue, called ‘Metro’, quickly seals wounds in just 60 seconds. The gel-like material of the wound glue is activated by Ultraviolet (UV) light and it dissolves shortly after. Metro glue’s elasticity makes it ideal for sealing wounds in body tissues that continually expand and relax like the heart or lungs. The glue has been successfully tested on rodents and pigs. It will soon be used in human trials. Kiran Mazumdar Shaw, who is the chairperson of Biocon — Asia’s leading Biopharmaceuticals enterprise, shared a video about the wound glue. The video by In The Know, shows how the Metro glue works.

Glue for wounds!


Feb 5, 2021

Silicon anode structure generates new potential for lithium-ion batteries

Posted by in categories: materials, nanotechnology

New research conducted by the Okinawa Institute of Science and Technology Graduate University (OIST) has identified a specific building block that improves the anode in lithium-ion batteries. The unique properties of the structure, which was built using nanoparticle technology, are revealed and explained today in Communications Materials.

Feb 5, 2021

Engineers develop programming technology to transform 2-D materials into 3D shapes

Posted by in category: materials

University of Texas at Arlington researchers have developed a technique that programs 2-D materials to transform into complex 3D shapes.

Feb 5, 2021

Scientists narrow down the ‘weight’ of dark matter trillions of trillions of times

Posted by in categories: cosmology, materials

Scientists are finally figuring out how much dark matter — the almost imperceptible material said to tug on everything, yet emit no light — really weighs.

Jan 30, 2021

3D-printed house in Italy is made from locally-sourced clay

Posted by in categories: habitats, materials

“TECLA (an acronym which stands for “Technology and Clay”) is a habitat consisting of two interconnected housing units, each covered by a semi-spherical dome. The units have been built using multiple Crane Wasp printing units operating simultaneously. Crane WASP is defined by the manufacturer as “a collaborative 3D printing system capable of printing houses” and can print various materials — such as earth-based materials, concrete mortar, and geopolymers — with a maximum speed of 300 mm/s and a maximum printing area of 50 sqm per unit. The design of the habitat features two or more “cocoon-like” housing units, whose shape vaguely resembles that of a sea urchin, in which structure, insulation, and finishes coincide. The thick raw earth walls of the units have a hollow structure consisting of several clay “waves”, which makes them at the same time relatively lightweight, resistant, and highly insulating. About 200 printing hours are required to build each unit, which consists of 350 clay layers, each 12 mm thick.”

Designed by Mario Cucinella and build by WASP, TECLA is a prototype house near Ravenna, Italy, made by 3D-printing a material based on locally-sourced clay.

Jan 28, 2021

How chromosomes evolve to create new forms of life

Posted by in categories: biological, materials

3D printing is a universal process in the sense that pretty much any part that can be drawn up in a CAD program can be printed, at least within a certain resolution. Machining a part on a mill or lathe, while having the advantage of greater accuracy and material options, is a slightly less universal process in that many possible designs that exist in theory could never be machined. A hollow sphere can easily be printed, but a ball could never be milled as a single part into a hollow sphere—unless you happen to have a milling machine tiny enough to fit inside the ball. But what about biological parts, and whole animals? How universal, from a design perspective, is growth?